Hey Guys- need some help on my 2002 310...
As mentioned earlier, I found some wetness direclty under the foward porthole when we removed the v-berth cushion at the end of last season. I'm a boater newbie (starting 3rd season), so I realized that in previous seasons, I never checked this area, so not sure how long this has been going on.
I removed the shelf, and got the porthole out ok but found that the material between the outside fiberglass and the inside wall is soaking wet!

When I touched it, it's sort of felt like pudding consistency, ugh!

. The area seemed structurally strong- the chrome ring is secured real tight- could not move at all
I also found what I think was a gasket, about 1/3 was missing, adhered to the chrome frame. I pealed the remainder off, and headed to the marina store. Of course they did not have the 'gasket', so they said to just use chalk in place of a gasket.
So my questions:
1) what do I do with the wet fiberboad? I was afraid to dig down until I got some advise, so not sure how deep the rot is.
2) do I order a 'gasket' from Rinker, or somewhere else?
3) or can I just fill the void with silicon?
Last thing: the boat's in the water already, but if I need to get to the porthole from outside, I can probably do from the t-dock.
Thanks in advance.